Online user account access control includes adjustable authentication challenge levels based on a level of match between observed attributes of a present login attempt and corresponding recorded attributes for the authentic user for the entered user identifier (UID). Login candidates whose attributes sufficiently closely match the recorded attributes for the entered UID are allowed to select an authentication graphic pattern registered for the UID from a set of alternatives, with the degree of complexity of such selection based authentication increasing according to the degree of difference between the observed attributes of the present login attempt and the corresponding recorded values for the UID, while by default, login candidates may be required to produce the registered authentication graphic pattern from blank slate. Accordingly, authentic, but only authentic, users are able to login with high convenience, with underlying graphic pattern-based passcode protected against dictionary-based and brute-force attacks, or capture, by unauthorized parties.
Legal claims defining the scope of protection, as filed with the USPTO.
4. The method of claim 1, wherein the graphic pattern comprises an array of user-definable elements.
5. The method of claim 1, wherein the empty outline comprises a plurality of user-selectable graphic elements.
8. The method of claim 1, further comprising, based at least in part on the login candidate being ascertained as authentic, storing the present FV as one of the set of model FVs for the entered UID.
9. The method of claim 1, further comprising, based at least in part on the login candidate being ascertained as unauthentic, storing the present FV as one of a set of invalid FVs.
11. The method of claim 10, wherein at least a portion of the set of alternative FVs are formed based on FVs stored for online user accounts of other UIDs.
16. The system of claim 15, wherein the one or more acceptable patterns of the set of alternative completed graphic patterns comprises at least two graphic patterns.
17. The system of claim 16, wherein a total number of the at least two graphic patterns is adjusted according to the risk assessment.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
March 30, 2020
March 14, 2023
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